Rotary valve for internal-combustion engines.



' G. W. .FOUKILy ROTARY VALVE FOR INTER-NAL COMBUSTIOYN ENGINES. xAPPLICATION 111211 AP11.125, 1912.v 11Y11Ewn v'11111121 1,172,782.

1 1915. Patented Feb. 22,1916.

UNITED sTATEs PATEN GEORGE W. FOUKE, OF SACRAMENTO, CALIFORNIA,ASSIGNOR, BY MESNE ASSIGN MENTS, TO NATIONAL MANUFACTURING COMPANY, OFSAN FRANCISCO, CALI-- ROTARY VALVE FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patent-eu Feb. 22, raie.

Application led April 25, 1912, Serial No. 693,074. Renewed July 21,1915. Serial No. 41,188.

To all whom z't may concern:

Be it known that I, GEORGE W. FoUKE, citizen of the United States,residing at Sacramento, in the county of Sacramento and State ofCalifornia, have invented new and useful Improvements in Rotary Valvesfor Internal-Combustion Engines, of which the following is aspecification.

This invention relates to rotary valves for `internal combustionengines.

It is the object of this invention to provide a rotary valve forcontrolling the delivery and discharge of gases to and from enginecylinders, and which is designed to obviate the use of cams, push rods,puppet valves, springs, and the like.

A further object is to vprovide a rotary valve for internal combustion.engines by means of which the explosive mixture delivered to the enginecylinders will be superheated from the heat generated by the exhaustgases.

A further object is to provide a rotary valve of the above characterwhich is simple in construction and efficient in operation,and which isadapted to be adjusted to compensate for wear of the valve surface.

The invention. consists of the parts and .the combination andconstruction of parts as hereinafter more fully described and claimed,having reference to the accompanying drawings, in which- Figure 1 is -aview in vertical section` of a gas engine showing the invention asapplied. Fig. 2 is a detail longitudinal section of the rotary valve.Fig. 3 is an enlarged section onthe line X-X of Fig. 2. Fig. 4 is anenlarged section on the line Y-Y of Fig. 2.

In the drawings, A, B, C and D represent a series of engine cylinders inwhich pistons 2 are' reciprocably mounted in the usual ,.manner; thepistons 2 being connected to a crank shaft 3 by means of piston rods inthe usual manner. The upper ends of eachA of the engine cylinders .A, B,C and D'are formed with inlet and exhaust ports 4 and 5, respectively,which ports open into the interior of a valve casing 6, extending in ahorizontal direction above the engine cylinders A, B, C and D, as shownin Fig. 1. The ports 4 and 5 in the cylinders A, B, C and D are arrangedin alinement on the longitudinal center of the valve casing 6, and arespaced a. suitable distance apart. Mounted in the valve casing 6 isatapered tubular valve 7, which is designed to rotate in the valvecasing 6, as will be later described, to alternately open and close theports 4 and 5. The valve casing 6 is constructed to'conform to thetapered surface of the valve 7; the outer surface of the valve 7slidably-contacting the inner surface of the valve casing 6 so as toform a sufficiently tight joint between the ports 4 and 5 as to preventthepassage of the gases from one port to another. Means are provided foradjustingl outer periphery and is adapted to be screwed into a cap 1lwhich closes the large end of the valve casing 6; the cap 11 beingsecured to the valve casing 6 by means of bolts 11', or in lany othersuitable manner. Formed onv the outer end of the valve 7 is a conicaltrunnion 12 which extends into and is surrounded by the crowding ring10, the inner face of which conforms to the outer Vface of the trunnion12. In adjusting the valve 7 longitudinally in the valve casing 6, thecrowding ring 10 is turned in itsthreaded bearing in the cap 11 so as tobear against the conical face-of the trunnion 12, and thereby crowd thevalve 7 lengthwise into the valve casing 6 until the required degree ofcontact between the valve 7 and the valve casing 6 is obtained.

The set-screw 8 is mounted on a frame 13 carried by the valve casing Gand extends in a horizontal direction s0 that its inner end will bearagainst the outer end of the shaft 9 which is formed on the longitudinalaxis of the valve 7; the set-screw 8 forming an adjustable abutment forlimiting the longitudinal movement of the valve 7 when the latter iscrowded lengthwise into the valve casing 6 by means of the crowding ring10.

Mounted on thel shaft 9 is a beveled gear 14 which meshes with a similargear on a vertically `disposed shaft 16, which is designed to be rotatedfrom the crank the valve casing' in which enen to shaft i3 through. aseries of gears indicated at l? in such nianner as to rotate the gearill and therebj7 rotate the valve "l through the shaft The mounting etthe beveled gear on the ft, 9, may he eiieeted by splining or such otherwell lnioivn ineens as will perinit the shaft to slide relatively toythe lwhen aailiusting the valve in the inanner stated. Mounted Withinthe valve T and extending longitudinally therein is a tube 1S the outerperiphery7 of which is spaced from the inner periphery of the valve 7,forming an annular chamber betn'een.the -walls of the valve 7 and the`Walls of the 'tube 1S. The inner end ot the tube 18 terminates a shortdistance frein, the

inner end et the valve 17 while its outer end passes tirough'theltrunnion 12 en the outer end et' the valve 't' and connectsWith a eed pipe llleading :troni any suitable source of supplv, andwhich is attached to the cap 11, :is shown in Fig. 1, and through whichexplosivev gases are designed to be delivered continuously totheinteriorn of the 'valve 7.

Formed in the Walls oi the valve l are a series of diainetricallyopposed perorations 20, which are designed to register with the' inletports si of the engine cylinder, when the valve l is rotated; thepert'orations 2()k snoivi in Fig., o.

sages leading through the valve 7 in aline' nient with the exhaus ports5 so as to previde connnnnieations between the interior of the arginecylinders and the atmosphere, through the poi s and ports 22, formed inIn, haust pipe as shown in Fig. 1.

ln the operation of the iziveul'ion the ex- ]filosivf.- mixture isdelivered to the interior et the vulve 7 through the conduit 19, and t';t .-o 1S; the valve lis rotated from the ,nk snuit 3 tnrouggh the 17,shaft 16, gears flow-li and the shaft il, at a ratio of r volution ofthe valve l" to one revoiu et. the crank When the perioiations 20, inthe valve 'l' register vwith the ports -iin the enginecylinders. theexplosive mixture will be drawn into the Lexi-- gine eylindi on the downstroke of the stones the area of the pertorations 2O and their positionsin relation toeaeh other beine" such to open the ports l to forni a ionbetween the interior of' the and the valve 7 on the suo ,he strokes ofthe pistons 2; the

ports l 'being closed by the walls of the valve during the compression,explosion or scavenging strokes of the pistons 2.

The perforations 21 are of such area and are disposed in such relationto each other and to the ports 5 as to open the latter on the exhaust orscavenging strokes of the pistons 2; the Walls of the valve 'i' closingthe ports during the intake compression and explosion strokes 01": thepistons 2.

lVhen the ports o are'openiug to the perforations 21, the het exhaustgases will pass through the tubes 2Q- and he discharged to theatmosphere through the pipe 9.3; the het gases passing' through thetubes 22, heating the latter in such manner as to superheat` theexplosive mixture in the valve 7 previous to its being delivered to theengineeylinders; the explosive mixture on passing through the tube 18circulating around the' tubes 22 passing transversely therethrough. Bydischarging the explosive nnxture into the valve 7 adjacent its innerend it will. be

1. In an internal combustion engine7 the combination with a. series ofengine cylinders of a horizontally disposed. valve cas 4ingiforined withinlet and exhaust ports opening); to the engine cylinders, a rotarytubular valve in said easing; having dia- Inetrically: spaced portstherein arranged to register with the inlet portsj and having diauinetricnlly disposed passages leading therethrough registerable with theexhaust ports7 and a tube attending longitudinally into the valve to apoint near the inner end thereof for introducing an explosive. mixtureinte vthe interior of thetubular valve.

2. ln an internal combustion enfri'ne, the combination with a. series ofengine cylinders el a horizontally disposed valve casing Aformed withinlet and exhaust ports opening; to the engine cylinders, a rotarytubular valve in said easing having diametrically spaced ports thereinarranged to register 'with the inlet ports, and having dianietricallydisposed passages leading therethrough registerable with the exhaustports, and means for introducingA an explosive mix-- ture into theinterior of the tubular valve, ineluding tube extending longitudinallyinto the valve and opening' adjacent the inoribed iny invention, what .lclaim and desire to-seeure by Letters Pat- A ner end thereof, and aconduit vleading to said tube,

3. In an internal combustion engine, the combination with a series ofengine cylinders of a horizontally disposed valve casing formed withinlet and exhaust ports opening to the engine cylinders, a rotarytubular valve in said casing having diametrically spaced ports thereinarranged to register` with the inlet ports, and having diametricallydisposed passages leading therethrough registerable with the exhaustports, and means for introducing an explosive mixture into the interiorof the tubular valve, in-

cluding a tube extending longitudinally into the valve and openingadjacent the inner end thereof, and a conduit leading to said tube, saidexhaust passages passing through the tube and separated therefrom bycylindrical walls.

4. In an internal combustion engine, the

the valve and opening adjacent the inner sie end thereof, and a conduitleading to said tube, said exhaust passages passingthrough the tubeandseparated therefrom by cylindrical Walls, and means for adjusting thetubular valve lengthwise in its casing.

In combination with a multiple cylinder combustion engine having inletand exhaust ports for each cylinder, a-hollow cylindrical rotary valvehaving inlet ports through its Wall and communicating With its interiorand adapted to register with the cylinder inlet ports, interior websextending across the hollow valve and forming exhaust l ports entirelywithin the valve and extending completely therethrough, there being anexhaust port situated oppositely to each of the cylinder exhaust portswith Which port the valve exhaust ports register when they register withthe cylinder exhaust ports.

6. In a device of the character described, a revoluble hollowcylindrical valve having inlet ports through its peripheral wall, Websextending interiorly across the hollow valve and forming exhaust portsextending through the valve from outer face to outer face thereof.

In testimony whereof I have' hereunto set my hand in the presence of twosubscribing witnesses.

enonen w. rouxn.

Witnesses WALTER REIMERS, GENEVIEVE S. DONELIN.

